Hi Paul.

>I have a projecthook class subclassed from the _base class library. The _base class library is in my project. Anytime I try to build an exe I get the error that "..._base is in use and cannot be recompiled". This error rings a bell from a long time ago. I can't seem to find the solution to this.

Since the ProjectHook is open when the project is open, _base.vcx must be open as well, since it contains the parent of your ProjectHook. As a result, it can't be compiled. So, you have two choices: base your ProjectHook on something that's not in any class library in your project or open the project using the NOPROJECTHOOK clause when you want to build it.

Doug